Ka-band high heat dissipation rate and lightweight radial cooling space traveling wave tube packaging structure

Abstract

The present invention relates to the field of whole-tube design for space traveling wave tubes (TWTs), and discloses a Ka-band, high-heat-dissipation, lightweight, radially cooled TWT packaging structure. The structure comprises: a tube core, disposed at the center of the TWT and serving as the core component of the TWT for signal transmission and amplification; and an interaction structure disposed in the middle of the tube core, with an electron gun connected to its left end and a collector connected to its right end. An input and output energy transmission system is disposed above the left side of the interaction structure, and an output and output energy transmission system is disposed above the right side of the interaction structure. By combining a lightweight, efficient heat dissipation design with advanced electron gun and fixed structure technologies, the TWT's heat dissipation efficiency, performance, and reliability are improved, reducing satellite thermal control pressure and operating costs, increasing the number of transponders carried, and enhancing the satellite's overall performance and economic value.

Description

Technical Field

[0001] The present invention relates to the field of whole-tube design of space traveling wave tubes, and in particular to a Ka-band high-heat-dissipation-rate lightweight radiation-cooled space traveling wave tube packaging structure. Background Art

[0002] As a key payload on satellites, space traveling wave tubes (TWTs) are currently irreplaceable microwave power amplifiers. Their advantages, such as high output power, high efficiency, long lifespan, and strong adaptability to space environments, have given them a dominant position in space applications such as communications satellites.

[0003] Although space traveling wave tubes (TWTs) can achieve an overall efficiency exceeding 60%, their high output power generates considerable heat during operation. For example, communications satellites incorporate multi-link transponders, each equipped with two or three TWT amplifiers. The cumulative heat generated by all these TWTs is considerable. For the TWTs to function properly, this heat must be effectively dissipated.

[0004] Traditional conductive space traveling wave tubes transfer heat generated during operation to the satellite's cabin, where it relies on the satellite's thermal control system to dissipate heat and maintain a stable temperature. This requires sufficient heat dissipation capacity on the satellite platform, which increases the load on the satellite's thermal control system and reduces the number of transponders that can be carried. Therefore, it is necessary to design a radiatively cooled space traveling wave tube that actively dissipates heat through its own radiators. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a Ka-band high-heat dissipation rate lightweight radial-cooled space traveling wave tube packaging structure, which solves the problems of efficient heat dissipation and lightweight design of high-power output space traveling wave tubes in satellite applications.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a Ka-band high heat dissipation rate lightweight radiation-cooled space traveling wave tube packaging structure, comprising:

[0007] The tube core is located at the center of the traveling wave tube and serves as the core component of the space traveling wave tube, used for transmitting and amplifying signals;

[0008] The device comprises an interaction structure, wherein the interaction structure is arranged in the middle of the tube core, the left end of the interaction structure is connected to the electron gun, the right end of the interaction structure is connected to the collector, the upper left of the interaction structure is provided with an input energy transmission system, and the upper right of the interaction structure is provided with an output energy transmission system;

[0009] A packaging structure, which is arranged outside the tube core and is used to protect and fix the tube core of the space traveling wave tube;

[0010] The collector-level heat dissipation structure is installed at the rightmost end of the traveling-wave tube and is used to dissipate part of the heat generated during the operation of the space traveling-wave tube to maintain its normal working temperature.

[0011] Preferably, the input and output energy transmission system includes an input window frame 1, which is arranged on the interaction structure. An input window sleeve is fixedly connected to the outer wall of the input window frame 1. An input window porcelain 1 is fixedly connected to the outer wall of the input window frame 1. The outside of the input window porcelain 1 is arranged inside the input window sleeve. An input inner conductor 1 is fixedly connected inside the input window frame 1.

[0012] Preferably, the output energy transmission system includes a bent waveguide, which is arranged on the interaction structure. A shielding cover is fixedly connected to the concave hole on the upper surface of the right end of the bent waveguide. A nut is threadedly connected to the outer wall of the cylindrical connector at the lower right end of the bent waveguide. An output window frame 2 is arranged on the cylindrical connector at the lower right end of the bent waveguide. The outside of the output window frame 2 is connected to the cylindrical connector at the lower right end of the bent waveguide through the bent waveguide. An output window porcelain 2 is arranged in the inner hole of the bent waveguide. An output inner conductor 2 is arranged at the upper end of the bent waveguide.

[0013] Preferably, the output window porcelain 2 is made of ceramic material and is in a cylindrical shape. The shielding cover is in a barrel-like structure with a slot on the edge.

[0014] Preferably, the interaction structure adopts a "pin" - shaped clamping rod and a conical spiral design.

[0015] Preferably, the outer circle of the upper port of the input window sleeve is provided with an external thread corresponding to the K2.92 interface, and the inner circle of its lower port is provided with an internal thread.

[0016] Preferably, the packaging structure includes a bottom plate, which is fixedly connected to the outer wall of the tube core. The bottom plate is arranged on the outer wall of the isolation plate. A shell is fixedly connected to the surface of the bottom plate. An output support right and an output support left are arranged above the right side of the bottom plate. The right cover plate and the left cover plate are respectively connected to both sides of the output support right and the output support left. An isolation plate is connected to the right end surfaces of the output support right and the output support left. An input cover sheet is arranged at the opening position above the shell. A cable support is fixedly connected above the right end of the bottom plate. A high-voltage cable flange is arranged at the top and bottom of the cable support.

[0017] Preferably, the outer wall of the isolation plate is fixed on the left side of the collector-level heat dissipation structure.

[0018] Preferably, the shell is in a "U" - shaped structure. The right cover plate and the left cover plate are both in a thin sheet structure. The left cover plate and the output support left are both in a frame-shaped structure and are symmetrically arranged.

[0019] Working Principle: The electron gun consists of a core, an insulating porcelain barrel, a focusing electrode, an anode sealing ring, and a corrugated porcelain ring. The electron gun emits electrons, focusing them into a beam that enters a slow-wave circuit. The electrodes in the core are welded to the insulating porcelain barrel to ensure electrical insulation and structural stability, enabling reliable electron beam focusing.

[0020] The electron beam enters the slow-wave circuit and interacts with the high-frequency electric field within the helix, amplifying the microwave signal. The slow-wave circuit utilizes a phase-velocity gradient structure, achieving high electronic efficiency and linearity through the helix design. A centralized attenuator further stabilizes signal transmission and prevents internal oscillations.

[0021] Heat generated during operation is transferred to the outside through the heat dissipation structure. Heat from the die is conducted to the baseplate via the heat sink, while heat generated by the collector is dissipated through the collector heat dissipation structure as heat radiation. An O-ring connects the outer surface of the collector to the radiator, creating an effective heat dissipation channel that ensures rapid heat dissipation and prevents overheating.

[0022] The packaging structure consists of a base plate, housing, cover, and brackets, which together protect and secure the internal components. The base plate and housing design not only provide structural support but also reduce overall weight through weight-saving design. The input and output power transmission systems utilize rotationally symmetrical structures and threaded connections to achieve efficient signal transmission and electromagnetic shielding.

[0023] The present invention provides a Ka-band high-heat-dissipation, lightweight, radially cooled space traveling wave tube packaging structure. It has the following beneficial effects:

[0024] 1. The present invention uses a radial cooling design, combining a collector heat dissipation structure with a heat radiator. The heat is effectively conducted through an O-ring and dissipated in the form of thermal radiation, allowing the traveling wave tube to dissipate more than 60% of the heat. This significantly reduces the thermal control pressure of the satellite platform, increases the number of transponders that can be carried, and improves the overall performance of the satellite.

[0025] 2. By using lightweight materials, such as aluminum and titanium alloys, and optimizing the structural design, the present invention reduces the total weight of the traveling wave tube to less than 950 grams. This lightweight design not only reduces satellite launch and operation costs, but also improves system reliability and mechanical stability.

[0026] 3. This invention utilizes multiple advanced technical solutions, including a lightweight, highly reliable stacked elevated electron gun, a collector heat dissipation structure, and a highly reliable mounting structure, to ensure the stability of the traveling wave tube under high power output and harsh space environments. Improved structural design and the use of highly thermally conductive materials further enhance the system's thermal management capabilities and reliability.

[0027] 4. The packaging structure of the present invention uses a multi-layer sealing ring and insulation structure to ensure electrical insulation and mechanical stability. Through the optimized design of the input and output energy transmission system, efficient signal transmission and electromagnetic shielding are achieved, ensuring the high performance output of the traveling wave tube.

[0028] 5. The present invention's slow-wave circuit and interaction structure achieve high electronic efficiency and high linearity in energy conversion through optimized design. The spiral phase velocity gradient structure and centralized attenuator design further enhance signal amplification efficiency and system stability.

[0029] 6. Through effective heat dissipation and lightweight design, the present invention improves the service life and reliability of the traveling wave tube, reduces maintenance and replacement costs, and at the same time increases the number of satellite transponders carried, thereby improving the communication capability and economic value of the satellite. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is an outline diagram of the space traveling wave tube of the present invention;

[0031] Figure 2 This is an outline diagram of the space traveling wave tube of the present invention with its outer shell opened;

[0032] Figure 3 It is the external appearance diagram of the tube core of the present invention;

[0033] Figure 4 A cross-sectional view of the energy input and transmission system of the present invention;

[0034] Figure 5 A cross-sectional view of the output energy transmission system of the present invention;

[0035] Figure 6 This is an exploded view of the packaging structure of the present invention;

[0036] Figure 7 A schematic diagram of an input window cover according to the present invention;

[0037] Figure 8 FIG. 4 is a schematic diagram of a shielding cover according to the present invention.

[0038] Among them, 1. Packaging structure; 1-1. Bottom plate; 1-2. Outer shell; 1-3. Right cover plate; 1-4. Left cover plate; 1-5. Cable bracket; 1-6. Right output bracket; 1-7. Left output bracket; 1-8. Isolation plate; 1-9. Input cover plate; 1-10. High-voltage cable flange; 2. Collector heat dissipation structure; 3. Dielectric; 3-1. Electron gun; 3-2. Interaction structure; 3-3. Collector; 3-4. Input and output energy system; 3-4-1. Input window sleeve; 3-4-2. First input window frame; 3-4-3. First input inner conductor; 3-4-4. First input window ceramic; 3-5. Output and energy system; 3-5-1. Bend waveguide; 3-5-2. Second output window frame; 3-5-3. Nut; 3-5-4. Second output window ceramic; 3-5-5. Second output inner conductor; 3-5-6. Shielding cover. Specific implementation mode

[0039] Next, in combination with the drawings of the present invention, the technical solutions of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0040] Embodiment:

[0041] Please refer to the attached Figure 1 - attached Figure 3 , the embodiment of the present invention provides a Ka-band high heat dissipation rate and lightweight radiation-cooled space traveling wave tube packaging structure, including:

[0042] Dielectric 3, which is arranged at the center position of the traveling wave tube and serves as the core component of the space traveling wave tube for transmitting and amplifying signals;

[0043] It includes an interaction structure 3-2. The interaction structure 3-2 is arranged in the middle of the dielectric 3. An electron gun 3-1 is connected to the left end of the interaction structure 3-2, and a collector 3-3 is connected to the right end of the interaction structure 3-2. An input and output energy system 3-4 is arranged above the left of the interaction structure 3-2, and an output and energy system 3-5 is arranged above the right of the interaction structure 3-2;

[0044] The interaction structure 3-2 adopts a "pin" shaped clamping rod and conical spiral design.

[0045] Packaging structure 1, which is arranged outside the dielectric 3 for protecting and fixing the dielectric 3 of the space traveling wave tube;

[0046] Collector heat dissipation structure 2, which is installed at the rightmost end of the traveling wave tube for dissipating part of the heat generated during the operation of the space traveling wave tube to maintain its normal working temperature.

[0047] Specifically, the core component of the traveling wave tube (TWT) is responsible for signal amplification and transmission. The core 3 comprises an interaction structure 3-2, an electron gun 3-1, and a collector 3-3. The electron gun 3-1 emits an electron beam, which passes through the interaction structure 3-2 and interacts with the high-frequency electric field, amplifying the microwave signal. The collector 3-3, located to the right of the interaction structure 3-2, is responsible for collecting and dissipating the energy of the electron beam.

[0048] The electron gun 3-1 adopts lightweight, highly reliable stacked elevated electron gun 3-1 technology. Through multi-layer sealing rings and insulation structures, it ensures efficient electron beam emission and focusing, while providing good electrical insulation and mechanical stability. By emitting electron beams, it ensures the initial conditions for signal amplification and provides stable electron beam output through high reliability design.

[0049] The interaction structure 3-2 achieves efficient signal amplification through its optimized helical design and attenuator. The phase velocity gradient ensures optimal energy exchange between the electron beam and the high-frequency electric field, improving electronic efficiency and signal stability. The spatial traveling wave tube interaction structure 3-2 utilizes a "pin"-shaped clamping rod and a tapered helical design, along with both a centralized attenuator and a distributed attenuator to enhance stability.

[0050] The TWT core 3, interaction structure 3-2, and electron gun 3-1 are welded to the top surface of the base plate 1-1 via heat sinks, improving the heat dissipation capacity of the high-frequency portion of the core 3. The collector heat dissipation structure 2 is secured to the tube body by attaching a thermal radiation isolation plate 1-8 to the TWT body. Four stainless steel screws are inserted through the stepped holes of the thermal radiation isolation plate 1-8, the insulating disc, and the radially cooled TWT heat radiator. Furthermore, the screws are modified to a titanium alloy with lower thermal conductivity, reducing the amount of heat transferred from the collector heat dissipation structure 2 to the TWT base plate 1-1 and improving the radiative heat dissipation capacity of the collector heat dissipation structure 2. These characteristics give the TWT a high heat dissipation capacity. During operation, the TWT dissipates over 60% of its heat through heat radiation from the heat radiators extending outside the satellite cabin.

[0051] The packaging structure 1 includes a base plate 1-1, a housing 1-2, a cover plate, and a bracket, which provide protection and fixation for the tube core 3. The packaging structure 1 improves heat dissipation efficiency and structural strength through weight reduction design and high thermal conductivity materials.

[0052] The input and output systems utilize a rotationally symmetrical structure and threaded connections to achieve efficient signal transmission and electromagnetic shielding. The input system includes an input window frame, a 3-4-1 input window cover, input window porcelain, and an input inner conductor, ensuring efficient and stable signal transmission.

[0053] Please see the attached Figure 4The input energy transmission system 3-4 includes an input window frame 3-4-2, which is arranged on the interaction structure 3-2. The outer wall of the input window frame 3-4-2 is fixedly connected to the input window cover 3-4-1, the outer wall of the input window frame 3-4-2 is fixedly connected to the input window porcelain 3-4-4, the outside of the input window porcelain 3-4-4 is arranged inside the input window cover 3-4-1, and the inside of the input window frame 3-4-2 is fixedly connected to the input inner conductor 3-4-3.

[0054] The outer circle of the upper port of the input window frame 3-4-1 is provided with an external thread corresponding to the K2.92 interface, and the inner circle of the lower port is provided with an internal thread.

[0055] Specifically, the various components of the input and power transmission system 3-4 described above are rotationally symmetrical. The outer diameter of the upper port of the input window cover 3-4-1 is machined with external threads corresponding to the K2.92 interface, while the inner diameter of the lower port is internally threaded. Six flat surfaces are evenly spaced near the center of the outer diameter for mounting and fixing. The input inner conductor is rod-shaped, with a hole at the large end and four evenly spaced slits forming the jack for the K2.92 interface. The small end connects to the traveling wave tube helix, and the middle step surface is welded to the input window porcelain. External signals enter the input window cover 3-4-1 via a threaded connection.

[0056] Please see the attached Figure 5 The output energy transmission system 3-5 includes a curved waveguide 3-5-1, which is arranged on the interactive structure 3-2. A shielding cover 3-5-6 is fixedly connected to the inner concave hole on the upper surface of the right end of the curved waveguide 3-5-1. A nut 3-5-3 is threadedly connected to the outer wall of the cylindrical connector below the right end of the curved waveguide 3-5-1. An output window frame 2 3-5-2 is arranged on the cylindrical connector below the right end of the curved waveguide 3-5-1. The outside of the output window frame 2 3-5-2 is connected to the cylindrical connector below the right end of the curved waveguide 3-5-1 through the curved waveguide 3-5-1. An output window porcelain 2 3-5-4 is arranged in the inner hole of the curved waveguide 3-5-1, and an output inner conductor 2 3-5-5 is arranged at the upper end of the curved waveguide 3-5-1.

[0057] The output window porcelain 2 3-5-4 is made of ceramic material and is cylindrical in shape. The shielding cover 3-5-6 is a barrel-shaped structure with grooves on the edge.

[0058] Specifically, the curved waveguide includes tabs connecting to the TWT packaging structure 1 on either side near the right end and two symmetrical threaded holes near the bottom of the left end. The rightmost end of the curved waveguide is closed and has a weight-reducing groove. The right end of the curved waveguide 3-5-1 has a concave hole on the top and a protruding cylindrical connector with external threads below. The lower end of the connector has a threaded outer circle and a step on the inner wall for achieving standing wave matching. The left end of the curved waveguide 3-5-1 is curved, and the upper end has a flange with six threaded holes for connecting to external systems. The inner wall of the curved waveguide 3-5-1 near the right end has a raised conical matching structure with a through hole in the center for connection to the output inner conductor. The shielding cover 3-5-6 is a barrel-shaped structure with a slotted edge to fit tightly with the output matching device. The lower end of the output window frame is connected to the interaction structure 3-2. The upper end has a raised edge secured to the connector by a nut. The inner hole provides signal transmission. The upper end of the inner hole has a step that matches the output window and a thin-walled protrusion welded to the output window porcelain. The output window porcelain is made of ceramic and has a cylindrical structure. The output inner conductor is rod-shaped, with the intermediate step surface welded to the output window porcelain. The output energy transmission system 3-5 is designed as a coaxial-to-waveguide structure, using a miniaturized coaxial window and a lightweight aluminum alloy curved waveguide 3-5-1. The components are thin-walled. This results in a compact, lightweight, highly reliable, and high-performance output energy transmission system 3-5.

[0059] Please see the attached Figure 6 -Attached Figure 8 The packaging structure 1 includes a bottom plate 1-1, which is fixedly connected to the outer wall of the tube core 3. The outer wall of the isolation plate 1-8 is provided with the bottom plate 1-1, and the surface of the bottom plate 1-1 is fixedly connected to the outer shell 1-2. The right output bracket 1-6 and the left output bracket 1-7 are provided above the right side of the bottom plate 1-1. The right cover plate 1-3 and the left cover plate 1-4 are connected to the two sides of the output bracket 1-6 and the output bracket 1-7 respectively. The right end surface of the output bracket 1-6 and the output bracket 1-7 is connected with the isolation plate 1-8. The input cover plate 1-9 is provided at the upper opening position of the outer shell 1-2. The cable bracket 1-5 is fixedly connected to the upper right end of the bottom plate 1-1, and the high-voltage cable flange 1-10 is provided at the top bottom of the cable bracket 1-5.

[0060] The outer wall of the isolation plate 1 - 8 is fixed to the left side of the collection-level heat dissipation structure 2 .

[0061] The housing 1-2 is a "U"-shaped structure, the right cover 1-3 and the left cover 1-4 are both sheet structures, the left cover 1-4 and the left output bracket 1-7 are both frame structures, and are symmetrically arranged.

[0062] Specifically, base plate 1-1 is a flat plate with tabs on either side, each with mounting holes. Threaded holes are located on both sides of base plate 1-1's main body for securing housing 1-2. The left upper surface and left end of base plate 1-1 feature threaded holes for securing cable bracket 1-5. Two square weight-reducing slots are located on the left upper surface of base plate 1-1. Six through-holes are located on the right side of base plate 1-1 for mounting right output bracket 1-6 and left output bracket 1-7. The right end of base plate 1-1 features threaded holes for securing collector heat dissipation structure 2 and isolation plate 1-8. Housing 1-2 is U-shaped with mounting holes along its edges. A hole is located in the center for mating with input and power transmission system 3-4, and a square notch is located on the left side for mating with cable bracket 1-5. The right and left cover plates 1-3 and 1-4 are thin sheets with mounting holes along their edges. The cable bracket 1-5 has five through-holes where it mates with the base plate 1-1; six threaded holes on each side where it mates with the housing 1-2; a notched circular hole on the top end for the mounting flange, surrounded by four threaded holes. The right and left output brackets 1-6 and 1-7 are frame-shaped and symmetrical. They have threaded holes on the bottom where they mate with the base plate 1-1; threaded holes on the top where they mate with the output power transmission system 3-5; a crescent-shaped groove on the right side where it mates with the isolation plate 1-8, with threaded holes for securing the collector heat dissipation structure 2; a square debugging hole in the center, with threaded holes along the edges for securing the right and left covers 1-3 and 1-4; and threaded holes where they mate with the housing 1-2. The sides of the right and left output brackets 1-6 and 1-7 have square debugging holes, which are sealed by removable left and right covers 1-4 and 1-3. These features ensure that the magnetic focusing system of the core 3 can be fully debugged and glued after the space traveling wave tube is assembled, ensuring convenient debugging. The isolation plate 1-8 is a circular structure with a hole in the center where it mates with the core 3. Mounting holes are located near the hole. The left side has a crescent-shaped protrusion where it mates with the right output bracket 1-6 and the left output bracket 1-7. The input cover plate 1-9 is a circular structure with a hexagonal hole in the center. It mates with the outer circle of the input window cover 3-4-1 and has mounting holes evenly distributed around the edge. In summary, the tube core 3 is welded to the base plate 1-1 via a heat sink; the collector heat dissipation structure 2 is secured to the base plate 1-1 via the frame structure's right and left output brackets 1-6 and 1-7; the mating surfaces of the isolation plate 1-8 and the right and left output brackets 1-6 and 1-7 are designed with crescent-shaped protrusions; the output power transmission system 3-5 is secured to the right and left output brackets 1-6 and 1-7; the window cover of the input power transmission system 3-4 is mechanically secured by mating with the hexagonal holes of the input cover plate 1-9; and the flange for securing the cables is mounted on the cable bracket 1-5 for securement. These features ensure the overall structural reliability of the traveling wave tube, ensuring that the tube meets the aerospace-grade mechanical resistance requirements of the entire tube.The base plate 1-1 is designed as a flat plate with weight-reducing grooves. The right and left output brackets 1-6 and 1-7 are designed as frame structures, offering lightweight and high structural strength. The isolation plate 1-8 is a thin sheet structure, fixed between the collector heat dissipation structure 2 and the tube body, ensuring lightweight and secure fixation. The right and left output brackets 1-6 and 1-7 are used as a single unit to simultaneously support and secure the output energy transmission system 3-5 and the collector heat dissipation structure 2. The housing 1-2 is mounted on the side of the base plate 1-1, ensuring the depth of the threaded holes while reducing structural weight and complexity. The cable bracket 1-5 is designed as a hollow structure, with the housing 1-2 covering the notch in the cable bracket 1-5, ensuring lightweight and secure fixation. The center portion of the packaging structure 1 adopts a narrow design to reduce the weight of the base plate 1-1 and housing 1-2. These features ensure that the space traveling wave tube has a low overall weight of less than 950g while maintaining structural reliability.

[0063] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Ka-band high heat dissipation rate lightweight radiation-cooled space traveling wave tube packaging structure, characterized by: include: The tube core (3) is arranged at the center of the traveling wave tube and serves as the core component of the space traveling wave tube for transmitting and amplifying signals; The invention comprises an interaction structure (3-2), wherein the interaction structure (3-2) is arranged in the middle position of the tube core (3), the left end of the interaction structure (3-2) is connected to the electron gun (3-1), the right end of the interaction structure (3-2) is connected to the collector (3-3), the upper left of the interaction structure (3-2) is provided with an input energy transmission system (3-4), and the upper right of the interaction structure (3-2) is provided with an output energy transmission system (3-5); A packaging structure (1) is arranged outside the tube core (3) and is used to protect and fix the tube core of the space traveling wave tube; The packaging structure (1) comprises a bottom plate (1-1), the bottom plate (1-1) is fixedly connected to the outer wall of the tube core (3), the outer wall of the isolation plate (1-8) is provided with the bottom plate (1-1), the surface of the bottom plate (1-1) is fixedly connected to the outer shell (1-2), a right output bracket (1-6) and a left output bracket (1-7) are provided above the right side of the bottom plate (1-1), the right side of the output bracket (1-6) and the left side of the output bracket (1-7) are respectively connected to the right cover plate (1-3) and the left cover plate (1-4), the right end surface of the output bracket (1-6) and the output bracket (1-7) are connected to the isolation plate (1-8), an input cover plate (1-9) is provided at the upper opening position of the outer shell (1-2), a cable bracket (1-5) is fixedly connected above the right end of the bottom plate (1-1), and a high-voltage cable flange (1-10) is provided at the top of the bottom of the cable bracket (1-5); The collection-stage heat dissipation structure (2) is installed at the rightmost end of the traveling wave tube and is used to dissipate part of the heat generated when the space traveling wave tube is working, so as to maintain its normal operating temperature.

2. The Ka-band high heat dissipation rate lightweight radially cooled space traveling wave tube packaging structure according to claim 1, characterized in that: The input energy transmission system (3-4) comprises an input window frame (3-4-2), wherein the input window frame (3-4-2) is arranged on the interaction structure (3-2), the outer wall of the input window frame (3-4-2) is fixedly connected to the input window cover (3-4-1), the outer wall of the input window frame (3-4-2) is fixedly connected to the input window porcelain (3-4-4), the outside of the input window porcelain (3-4-4) is arranged inside the input window cover (3-4-1), and the inside of the input window frame (3-4-2) is fixedly connected to the input inner conductor (3-4-3).

3. The Ka-band high heat dissipation rate lightweight radially cooled space traveling wave tube packaging structure according to claim 1, characterized in that: The output and energy transmission system (3-5) includes a bent waveguide (3-5-1), the bent waveguide (3-5-1) is arranged on the interaction structure (3-2), a shielding cover (3-5-6) is fixedly connected to the concave hole on the upper surface of the right end of the bent waveguide (3-5-1), a nut (3-5-3) is threadedly connected to the outer wall of the cylindrical connector at the lower right end of the bent waveguide (3-5-1), an output window frame two (3-5-2) is arranged on the cylindrical connector at the lower right end of the bent waveguide (3-5-1), the outside of the output window frame two (3-5-2) is connected to the cylindrical connector at the lower right end of the bent waveguide (3-5-1) through the bent waveguide (3-5-1), an output window ceramic two (3-5-4) is arranged in the inner hole of the bent waveguide (3-5-1), and an output inner conductor two (3-5-5) is arranged at the upper end of the bent waveguide (3-5-1).

4. The Ka-band high heat dissipation rate lightweight radially cooled space traveling wave tube packaging structure according to claim 3, characterized in that: The output window ceramic two (3-5-4) is made of ceramic material and is cylindrical, and the shielding cover (3-5-6) is of a barrel structure with slots on the edge.

5. The Ka-band high heat dissipation rate lightweight radiation-cooled space traveling wave tube packaging structure according to claim 1, characterized in that: The interaction structure (3-2) adopts a "pin" - shaped clamping rod and conical spiral design.

6. The Ka-band high heat dissipation rate lightweight radially cooled space traveling wave tube packaging structure according to claim 2, characterized in that: The outer circle of the upper port of the input window sleeve (3-4-1) is provided with an external thread corresponding to the K2.92 interface, and the inner circle of its lower port is provided with an internal thread.

7. The Ka-band high heat dissipation rate lightweight radial cooling type space traveling wave tube packaging structure according to claim 1, characterized in that: The outer wall of the isolation plate (1-8) is fixed to the left side of the collector - stage heat dissipation structure (2).

8. The Ka-band high heat dissipation rate lightweight radially cooled space traveling wave tube packaging structure according to claim 1, characterized in that: The outer shell (1-2) is of a "U" - shaped structure, the right cover plate (1-3) and the left cover plate (1-4) are both of thin - sheet structures, and the left cover plate (1-4) and the output support left (1-7) are both of frame structures and are symmetrically arranged.

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